Created attachment 140102 [details] PDF test case As reported in https://gitlab.gnome.org/GNOME/evince/issues/745 -->snip<-- Opening PDFs scanned with my Brother Laser Printer is virtually impossible. The opening causes a 100% CPU spike on one core and does take forever. The PDFs were generated in PDF/A by the Brother scanner unit. I have attached one for testing. I did not have this problem on Mac OSX, but Microsoft Edge seems slow on opening these files too. Chrome does process them with no mayor delay. PDFs not from my scanner, like digital invoices I get regularly, do not produce any problem. -->snip<-- It is noticeable slower than Acroread, which is instant, and xpdf, which is almost instant. $ time pdftoppm -png brother_001793.pdf out-ppm real 0m9.454s user 0m9.404s sys 0m0.036s $ time pdftocairo -png brother_001793.pdf out-cairo real 0m34.103s user 0m33.884s sys 0m0.200s
Created attachment 140968 [details] PDF with full page graphic - scanned on Brother Laser/Scanner I got the same problem. Files coming from my Brother Laser/Scanner will take forever to open in Evince/Poppler (Ubuntu 18.04). 30 Seconds for the file attached, while muPDF opens it instantaneously.
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